(5.426) All RAF magnetic compasses missing LUBBER LINE (needle indicating heading) #23
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In all RAF magnetic compasses, the LUBBER LINE (needle indicating heading) is missing or should be fixed at specific place.
In Beaufighter, Spitfire and Hurricane it is missing.
In Wellington is is rotating with grid wires.
Issue related discussion:
https://theairtacticalassaultgroup.com/forum/showthread.php?t=38387
Updated by Rostic 28 days ago
File 20250115140442_1_Blenheim.jpg 20250115140442_1_Blenheim.jpg added
File 20250115141047_1_Gladiator.jpg 20250115141047_1_Gladiator.jpg added
File 20250115141355_1_TigerMoth.jpg 20250115141355_1_TigerMoth.jpg added
Same problem with missing LUBBER PIN exists in Blenheim (pilot position), Gladiator and TigerMoth.
LUBBER PIN is missing on compass in Blenheim at bombardier position too, but there is another mark that can be used to determine heading.
Quote Edit #2
Updated by Rostic 28 days ago
Example off usage of magnetic compass to synchronize gyro compass with magnetic compass is at time stamp: 7:08.
Pilot is aligned lines and read the value that lubber line pointing at (about 320 degrees). Then he entered pretty close value to gyro compass. Probably he applied variation and deviation to magnetic value to read navigation heading.
https://youtu.be/NQWZEVaoFKQ?t=428